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Do I think that Jesus is interchangeable with the God the Father?
No.

Do I think that Jesus, who was the Christ, is fully God – just as much as God the Father (and for that matter the Holy Spirit), and that His Deity is inseparable from His humanity.
Yes

Do I believe that Jesus was involved in the Godhead’s communication to humans in the Old Testament?
Yes, absolutely. (Jhn 8:58 ~ ..”Before Abraham was – I AM.”)